Motorola CPCI-6020 Benutzerhandbuch

The value or identifier to the right of the equal sign is displayed as left-justified character (ASCII) 
strings padded with space characters, and quotes (“) are displayed to indicate the size of the 
string. Values that are not in quotes are considered data strings, and data strings are right-
justified. The data strings are padded with zeroes if the length is not met.

The Board Information Block is factory-configured before shipment. There is no need to modify 
block parameters unless the NVRAM is corrupted. Refer to the CPCI-6020 CompactPCI Single 
Board Computer Programmer’s Reference Guide for the actual location and other information 
about the Board Information Block. Refer to the PPCBug Firmware Package User's Manual for 
a description of CNFG and examples.

Use the ENV command to view and/or configure interactively all PPCBug operational 
parameters that are kept in Non-Volatile RAM (NVRAM). Refer to the PPCBug Firmware 
Package User's Manual for a description of the use of ENV.

Listed and described next are the parameters that you can configure using ENV. The default 
values shown were those in effect when this publication went to print.

You can configure the PPCBug parameters using ENV command with the following arguments:

Bug, AST, or System environment [B/A/S] = B?

Maximum Memory Usage (Mb, 0=AUTO) = 2?

The maximum amount of DRAM that PPCBug is allowed to allocate for its own purposes.

B

Bug is the mode where no system type of support is displayed. However, system-
related items are still available. (Default).

A

Abbreviated Self-Test

S

System is the standard mode of operation, and is the default mode if NVRAM should 
fail. System mode is defined in the PPCBug Firmware Package User’s Manual.